Demountable rim



W. E. COPITHORN.

DEMOUNTABLE RIM.

A'PPLlcATloN HLED Now-6.1919.

1,354,468. Y Patented Oct. 5, 1920.

Figi.

WALTER. E. COPITORN, OF NA'CK, MASSAGE- DEMOUTTABLE RIM.

T 0 all whom tim/ay concern.'

Be it known that I, WALTER E. Coer- KTHoRN, a citizen of the United States, residing at Natick, county of Middlesex, State of Massachusetts, have invented an Improvement in Demountable Rims, of which v.the following description, in connection a specidrawing repln order to give an understanding,l or

my invention, have illustrated in the drawings some selected embodiments thereof which will now be described, after Which the novel features of the invention will be pointed out in the appended claims.

In the drawings, Figure l is a side view y of a demountable rim embodying my invenot the other section .headed stud adapted to f Vadapted to enter the taii 55 tion having the tire applied thereto;

Fig. 2 is a plan view showing the manner in Which the two meeting ends ot two sections are connected together;

Fig'. 3 is a section on the line 3-3, Fig. 2, showing the two rim sections in broken position ready to be connected;

Fig. 4 is a section on the line r-3, Fig. 2, showing` the parts in their operative relation; y

nig. o ls device;

Fig. 6 is a section similar to Fie. "5 showing1 a modification oi the invention;

Fig. 7 is an underside vieivrof 6. L

l have illustrated my invention as emi bodied inla demountable rim of that type comprising three' sections.` The three sections of rny rim are indicated at l, 2 and 3, respectively. The ends of the section 1 are detachably connected to the meeting,I ends of the sections 2 and 3 by a novel eonneea section through.,the` locking tion iilustra-ted in 2 and 3. T he end of one section is provided on its inner face with an extension notch in its ,end and a tapered al en. -Pi d the end with a notch ot the extension and a tapered 'projection 'ed aperture. in the construction h` an sh run the sections 2 and S each have the etensrons theref sgieeiacaaon of .Leners retenez on and the projections are in the ends the sections l. This. is illustrated more Application led November 6, 1919. Serial No. 386,?.352

detail in 2 and 5i wherethe end the section 2 is shown as havingv the e sion s in the forni 0i a plate which riveted to the end of the section 2 on iis inner 'face and extends beyond said end.

This extension l is provided with a tapered aperture 5 and also with a notch G in its end, said notch having the chainiered or beveled surface 7. The end of the section l is provided with a tapered projection 8 of a size to it the tapered aperture and also lwith a headed stud 9 adapted to enter the notch G. This stud 9 is 'formed With a tapered head l0, the taper ot which cor- -responds to the beveled face The rim section l is termed at each end with a projection S and headed stud 9.

In' assembling` the parts oi the rim the ends of the rim sections 2 and 3 are swung inwardly into Vthe position relative to the rim section l shown in F'n. so that the extension on each rini section overlies the projection 8, and the extension is their moved longitudinally oif the rini l untii the notch G 'embraces the headed stud Si, at which time the rinr. :tions 2 and are swung outwardly untii th'ejyzeome into their proper circular relation relative tothe, rim section lshovvn in Fig. 4.

vWhen iii position the projection S enters the taperral aperture 5 and the extension lies; fatly against the inner face oi the rim section i. The projection 8 prevents any longitudinal or separating movement the, tire sections relative to each other and the engine-ir g ot the head l0 o `n'ojection li with the the rim sections in ation radially. The

. lons 1, "l i beveled Jaee '7 proper r i 11 and i2 oit preferablv b ends ot arm or plate 18 rigid therewith but extending beyond the end thereof and which overlies the inner face of the rim section 3. This plate or extension 18 is provided With a tapered aperture 19 in Which is received a tapered projection 20 rigidly' formed on the rimsection 3.

21 is a button pivoted to the rim section 3 and adapted to engage the end of the extension 18 and hold the rim sections 2 and 3 in their proper radial position..

' I claim:

1. A demountable rim comprising a plurality of sections, one of which is provided With an extension at its end having a tapered aperture and a notch at its extremity, and the other of Which is provided with a tapered projection to enter said aperture, and a headed stud to engage said notch.

2. A demountable rim comprising a plurality of sections, one of which is provided with an extension at its end having a tapered aperture and a notch at its eXtremity, and the other of Which is provided With va tapered projection to enter said aperture,

and a headed stud to engage said notch, the head of the stud overlying said eXtension and holding the rim sections from radial movement relative to each other.

In testimony whereof I have signed my name to this specification.

DR. WALTER E. COPITHORN. 

